Understand the World

Tell whether anyone (you or someone you know) is in a harmful cult, and better understand what makes a group a cult.

Test how accurate your understanding of psychology is by practicing and improving your ability to make predictions.

Take the challenge to identify the correct global trends on a variety of topics - from Africa's future population to the evolution of CO2 emissions in the US.

Uncover the history of pandemics, test your biosafety knowledge, and learn essential steps to safeguard humanity's future.

Test your knowledge of artificial intelligence and some of the risks it poses!

Our beliefs determine our behaviors and how we interact with others. Use this program to refine your beliefs and form more accurate views.

Learn about how certain sounds can have a particular connotation or meaning by finding out what sound fits your personality best

Find a charity that matches your altruistic priorities and is highly effective at advancing its chosen mission

See if you can guess which social interventions had a positive effect, a negative effect, or no effect, based on a short description.

Can you guess which of these high-profile experiments were legit?

We ran a study to investigate the predictive power of astrology. This is the test we used. Professional astrologers weren't able to beat it - can you?

Get personalized recommendations for which of our tools will be most helpful to you and track your progress in a dashboard.

Learn to recognize 3 common binary thinking traps and learn the nuanced thinking techniques you can use to combat them.

Get a glimpse into the opportunities that may await humanity if we can avoid disasters such as nuclear war and extreme climate change. Invite your imagination to take flight with 11 multiple-choice questions.

Test your knowledge of some of the world's most pressing problems: global health, animal welfare, and existential risks to humanity.

Separate fact from B.S. in this fun quiz that asks you to identify the misconceptions among 30 common beliefs.

There is more to interpreting evidence than you might think. Learn to improve your predictions by understanding evidence on a deeper level using Bayes' rule.

Tips on how to recognize if someone is at risk of suicide and advice on how to speak to them about it from experts in suicide prevention

This tool helps you reflect on the meaning of the words we use to describe emotions and the sensations that accompany them, with the aim of helping you better articulate how you feel